/**
* Returns the drag icon used to represent a cell in all drag operations.
*
* @param tree the parent tree object
* @param dragObject the dragged object
* @param index the index of the dragged object in the tree
* @return the drag icon
*/
public Icon getDragIcon(JTree tree, Object dragObject, int index) {
ContactListTreeCellRenderer dragC =
(ContactListTreeCellRenderer)
getTreeCellRendererComponent(
tree,
dragObject,
false, // is selected
false, // is expanded
true, // is leaf
index,
true // has focus
);
// We should explicitly set the bounds of all components in order that
// they're correctly painted by paintIcon afterwards. This fixes empty
// drag component in contact list!
dragC.setBounds(0, 0, dragC.getIconWidth(), dragC.getIconHeight());
Icon rightLabelIcon = rightLabel.getIcon();
int imageHeight = 0;
int imageWidth = 0;
if (rightLabelIcon != null) {
imageWidth = rightLabelIcon.getIconWidth();
imageHeight = rightLabelIcon.getIconHeight();
dragC.rightLabel.setBounds(tree.getWidth() - imageWidth, 0, imageWidth, imageHeight);
}
dragC.statusLabel.setBounds(0, 0, statusLabel.getWidth(), statusLabel.getHeight());
dragC.nameLabel.setBounds(
statusLabel.getWidth(), 0, tree.getWidth() - imageWidth - 5, nameLabel.getHeight());
dragC.displayDetailsLabel.setBounds(
displayDetailsLabel.getX(),
nameLabel.getHeight(),
displayDetailsLabel.getWidth(),
displayDetailsLabel.getHeight());
return dragC;
}
public static Image createImage(final JTree tree) {
final TreeSelectionModel model = tree.getSelectionModel();
final TreePath[] paths = model.getSelectionPaths();
int count = 0;
final List<ChangesBrowserNode> nodes = new ArrayList<ChangesBrowserNode>();
for (final TreePath path : paths) {
final ChangesBrowserNode node = (ChangesBrowserNode) path.getLastPathComponent();
if (!node.isLeaf()) {
nodes.add(node);
count += node.getCount();
}
}
for (TreePath path : paths) {
final ChangesBrowserNode element = (ChangesBrowserNode) path.getLastPathComponent();
boolean child = false;
for (final ChangesBrowserNode node : nodes) {
if (node.isNodeChild(element)) {
child = true;
break;
}
}
if (!child) {
if (element.isLeaf()) count++;
} else if (!element.isLeaf()) {
count -= element.getCount();
}
}
final JLabel label = new JLabel(VcsBundle.message("changes.view.dnd.label", count));
label.setOpaque(true);
label.setForeground(tree.getForeground());
label.setBackground(tree.getBackground());
label.setFont(tree.getFont());
label.setSize(label.getPreferredSize());
final BufferedImage image =
new BufferedImage(label.getWidth(), label.getHeight(), BufferedImage.TYPE_INT_ARGB);
Graphics2D g2 = (Graphics2D) image.getGraphics();
g2.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.7f));
label.paint(g2);
g2.dispose();
return image;
}